#include<iostream>
using namespace std;
int main()
{
	int arry[] = { 1,2,3,4,5 };
	string s1("hello bit");
	cout << s1.size() << endl;
	cout << s1.capacity() << endl;
	cout << s1.empty() << endl;
	s1.resize(15, 'a');
	cout << s1 << endl;
	s1.clear();

	for (int& a : arry)
	{
		a += 2;
		cout << a << " ";
	}
	cout << endl;
	return 0;
}